It means that it is cold and prickly on the outside, but sweet on the inside.

Because although the exterior of the pineapple is covered with spikes, the flesh is very sweet when opened.

Pineapple includes dietary fiber, organic acids, vitamin B1, vitamin C, carotenoids, potassium and various minerals. Among them, the content of vitamin C is five times that of apples.

In addition, pineapple contains pineapple protease, which can break down proteins, but it will lose its activity in the digestive tract and cannot continue to play the role of breaking down proteins. This protease breaks down the proteins that make up the cells on the surface of the tongue in small quantities in the mouth, so you can get a tingling sensation on your tongue after eating pineapple that has not been hot watered and soaked in salt water.

Expanded Information

Pineapple is a tropical fruit native to the Amazon River Basin of Brazil and Paraguay in South America, and is now widely cultivated in tropical areas. It is loved for its juiciness and sweetness, and has the effect of relieving summer heat.

The pineapple can be up to 30 centimeters long and weigh up to 4 kilograms. The shell is divided into many hexagonal shapes, each row is very sharp in the center. Flesh is yellow or white, wrapped in the middle of the core with a lot of fiber. The natural pineapple is pollinated by hummingbirds. The fruit is classified as multifloral (compound fruit).

Baidu Encyclopedia-Pineapple